An electric loader

Abstract

The present invention discloses an electric loader. The battery cover is rotatably connected to the frame assembly, and is also connected to the wheel covers arranged on both sides of the battery through a first connection component, and the battery cover is pushed by the first connection component to be rotatably opened upward; the configuration arranged on the front side of the battery is fixedly connected to the wheel cover through a bolt connection component, and the counterweight is also rotatably connected to the frame bottom plate through a second connection component. After removing the bolt connection component, the counterweight is rotated downward to be opened through the second connection component, and the opening degree formed by the upward opening of the battery cover and the downward rotation of the counterweight is larger than the size of the battery. The present invention connects the counterweight through a quick-change structure and changes the overall assembly of the counterweight to a flip assembly. On the one hand, it can reserve enough disassembly space convenient for operation for the replacement of the battery. On the other hand, this assembly method can reduce the disassembly steps of the counterweight during the battery replacement process, effectively saving the battery replacement time and labor costs.

Description

Technical Field

[0001] The present invention belongs to the field of electric loaders, and particularly relates to an electric loader. Background Art

[0002] The traditional fuel of loaders is diesel, which not only pollutes the environment but also seriously wastes energy. To improve this situation, many construction machinery manufacturers have developed electric loaders.

[0003] Electric loaders use batteries as energy storage power sources. The battery supplies electrical energy to the motor, driving the motor to operate, thereby pushing the loader forward and working. Therefore, the battery consumption of electric loaders is particularly large, and generally high-power rechargeable batteries are used as the power source of electric loaders. At present, electric loaders have just started to be promoted and used, and there are many deficiencies. The battery capacity is limited, and a fully charged battery can only support the loader to work for several hours, and it needs to be charged in time. However, the battery charging time is very long, and the machine cannot work during the charging period, which often delays the working time. The current solution is that an electric loader is equipped with two or more batteries. After the battery runs out of power, the battery is directly replaced, saving the charging time. However, the loader battery is relatively large in size, and the battery cover and counterweight need to be removed to have enough space to replace the battery. After replacing the battery, the battery cover and counterweight still need to be installed on the loader. And the existing electric loaders also have the following disadvantages when replacing the battery:

[0004] (1) The opening angle of the battery cover is small and is used for repairing the battery and other related components, and cannot provide space for battery replacement; increasing the opening angle of the battery cover to ensure the battery replacement space is limited by the volume, weight and structure of the battery cover and is difficult to achieve;

[0005] (2) When replacing the battery, it is necessary to remove the battery cover, counterweight and other battery peripheral components. These components are generally large in size, and multiple people are required to cooperate during disassembly and assembly, which is time-consuming and laborious;

[0006] (3) The counterweight is installed on the frame bottom plate and wheel cover through bolts, with many fixing points and a complex installation method. Summary of the Invention

[0007] Aiming at the problem of difficult disassembly during the battery replacement process of the existing electric loader, the present invention proposes an electric loader with a battery quick replacement structure. By adopting the battery quick replacement structure in the present invention, the steps of re-disassembling and assembling the battery cover and counterweight during battery replacement can be reduced, and the battery replacement time can be saved.

[0008] To achieve the above technical objectives and reach the above technical effects, the present invention is realized through the following technical solutions:

[0009] An electric loader includes a frame bottom plate, a battery cover, a counterweight, a wheel cover, and a frame assembly. The battery cover forms a closed space with the frame bottom plate and the frame assembly in the closed state, and the battery is arranged in the closed space. The battery cover is rotatably connected to the frame assembly and is also connected to the wheel covers arranged on both sides of the battery through a first connection component. The first connection component can push the battery cover to rotate upward and open. The counterweight arranged on the front side of the battery is fixedly connected to the wheel cover, and the counterweight is also rotatably connected to the frame bottom plate through a second connection component. After removing the bolt connection member, the counterweight rotates downward and opens through the second connection component, and the opening degree formed by the upward opening of the battery cover and the downward rotation of the counterweight is larger than the size of the battery.

[0010] As a further improvement of the present invention, the second connection component includes a first bracket and a second bracket hinged to the first bracket. The first bracket is fixedly connected to the frame bottom plate, and the second bracket is fixedly connected to the counterweight.

[0011] It further includes a flipping mechanism, which cooperates with the hinged first bracket and second bracket to drive the counterweight to rotate around the hinge point of the first bracket and the second bracket.

[0012] As a further improvement of the present invention, the flipping mechanism includes a linear motion component and a connecting rod. The linear motion component is fixed on the frame bottom plate. One end of the connecting rod is rotatably connected to the counterweight, and the other end is rotatably connected to the linear motion component.

[0013] As a further improvement of the present invention, the linear motion component includes a hydraulic rod, a linear guide rail, and a slide rail trolley arranged collinearly. The slide rail trolley is slidably connected to the linear guide rail. The hydraulic rod points in the direction of the counterweight. One end of the hydraulic rod is fixed on the frame bottom plate, and the other end is connected to the slide rail trolley to push the slide rail trolley to reciprocate on the linear guide rail.

[0014] As a further improvement of the present invention, the connecting rod is an adjustable connecting rod, and the other end thereof is rotatably connected to the slide rail trolley.

[0015] As a further improvement of the present invention, when the counterweight is in the closed state, the connecting rod is parallel to the linear guide rail.

[0016] As a further improvement of the present invention, the first connection component includes a support arm and an inclined arm arranged from bottom to top. The support arm is vertically arranged and fixed on the wheel cover. The inclined arm is a telescopic arm rod, arranged obliquely towards the inside of the battery placement space, and its free end is connected to the battery cover.

[0017] As a further improvement of the present invention, the inner side of the battery cover is rotatably connected to the frame assembly.

[0018] As a further improvement of the present invention, a battery mounting seat for fixing the battery is further provided between the frame bottom plate and the battery, and the battery mounting seat is fixed on the frame bottom plate.

[0019] As a further improvement of the present invention, the counterweight is connected to the wheel cover through a bolt connecting member, and the installation position of the bolt connecting member corresponds to the opening area of the battery cover.

[0020] Advantages of the present invention: The present invention connects the counterweight through a quick-change structure and changes the overall assembly of the counterweight to a flipping assembly. On the one hand, it can reserve enough disassembly space for easy operation for battery replacement. On the other hand, this assembly method can reduce the disassembly steps of the counterweight during the battery replacement process, effectively saving the battery replacement time and labor costs. Description of the Drawings

[0021] Figure 1 Schematic diagram of the explosion of the components around the battery of an electric loader;

[0022] Figure 2 Schematic diagram of the frame assembly of an electric loader;

[0023] Figure 3 Schematic diagram of the frame components of an electric loader;

[0024] Figure 4 Schematic diagram of the battery installation of an electric loader;

[0025] Figure 5 Schematic diagram of the installation of the battery cover and the counterweight of an electric loader;

[0026] Figure 6 Schematic diagram of the state when replacing the battery of an electric loader;

[0027] Figure 7 Schematic diagram of the structure of the quick-change mechanism;

[0028] Figure 8 Schematic diagram of the operation of the quick-change mechanism;

[0029] Wherein: 1 - battery cover, 2 - support arm, 3 - tilting arm, 4 - wheel cover, 5 - flipping mechanism, 6 - battery, 7 - battery mounting seat, 8 - frame bottom plate, 9 - counterweight, 10 - frame assembly, 11 - fixing bracket, 12 - hydraulic rod, 13 - slide rail trolley, 14 - first bracket, 15 - second bracket, 16 - linear guide rail, 17 - connecting rod, 18 - support, 19 - bolt connecting member. Detailed Embodiments

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] As Figure 1-8 The overall structure of an electric loader, including a frame bottom plate 8, a battery cover 1, a counterweight 9, a wheel cover 4 and a frame assembly 10. The battery 6 is arranged in the closed space formed by the frame bottom plate 8 and the frame assembly 10 when the battery cover 1 is in the closed state. The battery cover 1 is rotatably connected to the frame assembly 10 and is also connected to the wheel covers 4 arranged on both sides of the battery 6 through a first connection component, and the battery cover 1 is pushed to rotate upward and open through the first connection component; the configuration arranged on the front side of the battery 6 is fixedly connected to the wheel cover 4 through a bolt connecting piece 19. The counterweight 9 is also rotatably connected to the frame bottom plate 8 through a second connection component. After removing the bolt connecting piece 19, the counterweight 9 rotates downward and opens through the second connection component. The opening degree formed by the upward opening of the battery cover 1 and the downward rotation of the counterweight 9 is larger than the size of the battery 6. That is, the height gap between the lower edge of the fully opened battery cover 1 and the upper edge of the counterweight 9 is larger than the height of the battery 6.

[0033] The specific structure is as follows:

[0034] As Figure 7-8 Shown is a second connection component with a quick-change structure, including a first bracket 14 and a second bracket 15 that are hinged. The other end of the first bracket 14 is fixedly connected to the frame bottom plate 8, and the other end of the second bracket 15 is fixedly connected to the counterweight 9. It also includes a flipping mechanism 5, including a linear motion component fixed to the frame bottom plate 8 and a connecting rod 17 rotatably connected to the counterweight 9. One end of the connecting rod 17 is adaptively rotatably connected to the counterweight 9 through a support 18 arranged on the counterweight 9, and the other end of the connecting rod 17 is rotatably connected to the linear motion component; the flipping mechanism 5 cooperates with the hinged first bracket 14 and second bracket 15 to drive the counterweight 9 to flip with the hinge point of the first bracket 14 and the second bracket 15 as the rotation point.

[0035] Among them, the linear motion component adopts a hydraulic rod drive structure, including a hydraulic rod 12, a linear guide rail 16, and a slide rail trolley 13 arranged collinearly. The slide rail trolley 13 is slidably connected to the linear guide rail 16. The hydraulic rod 12 is arranged in the direction of the counterweight 9. One end of the hydraulic rod 12 is fixed to the frame bottom plate 8 through a fixed bracket 11, and the other end is connected to the slide rail trolley 13, pushing the slide rail trolley 13 to reciprocate on the linear guide rail 16. The connecting rod 17 is an adjustable connecting rod, and the other end thereof is rotatably connected to the slide rail trolley 13. When the counterweight 9 is in the closed state, the connecting rod 17 is placed parallel above the linear guide rail 16. When the hydraulic rod 12 extends, the connecting rod 17 extends outwards and rotates downward under the action of the gravity of the counterweight 9, and the counterweight 9 also rotates with the hinge point of the first bracket 14 and the second bracket 15 as the rotation point.

[0036] As Figure 1-4 shown, the tail end of the battery cover 1 is rotatably connected to the frame assembly 10. The structure of a set of first connection components connecting the left and right sides of the battery cover 1 to the wheel cover 4 includes a support arm 2 and an inclined arm 3 arranged from bottom to top. The support arm 2 is vertically arranged and fixed to the wheel cover 4. The inclined arm 3 is a telescopic arm rod, obliquely arranged towards the inner side of the battery 6 placement space, and its free end is connected to the battery cover 1. When the inclined arm 3 extends upwards, it simultaneously pushes the battery cover 1 to rotate upwards and open around the frame assembly 10.

[0037] In addition, it should be noted that the position of the fixed connection point between the counterweight 9 and the wheel cover 9, that is, the installation position of the bolt connector 19, corresponds to the opening area of the battery cover 1.

[0038] When replacing the battery, first, the battery cover 1 is rotated upwards and opened under the action of the first connection component, and the bolt connector 19 between the counterweight 9 and the wheel cover 4 is disassembled. Then, the counterweight 9 is rotated downwards and opened under the action of the second connection component, completely exposing the internal battery 6. Then, the bolts connecting the battery 6 and the battery base 7 are disassembled. Replace the battery 6.

[0039] A battery mounting seat 7 for fixing the battery 6 is further provided between the frame bottom plate 8 and the battery 6, and the battery mounting seat 7 is fixed to the frame bottom plate 8.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric wheel loader, characterized in that: It includes a frame bottom plate, a battery cover, a counterweight, a wheel cover and a frame assembly. The battery cover forms a closed space with the frame bottom plate and the frame assembly in the closed state, and the battery is arranged in the closed space. The battery cover is rotatably connected to the frame assembly and is also connected to the wheel covers arranged on both sides of the battery through a first connection component. The first connection component can push the battery cover to rotate upward and open. The counterweight arranged on the front side of the battery is detachably and fixedly connected to the wheel cover through a bolt connection component. The counterweight is also rotatably connected to the frame bottom plate through a second connection component. After removing the bolt connection component, the counterweight rotates downward and opens through the second connection component. The opening degree formed by the upward opening of the battery cover and the downward rotation of the counterweight is larger than the size of the battery. The second connection component includes a first bracket and a second bracket hinged to the first bracket. The first bracket is fixedly connected to the frame bottom plate, and the second bracket is fixedly connected to the counterweight. It also includes a flipping mechanism, which cooperates with the hinged first bracket and second bracket to drive the counterweight to rotate with the hinge point of the first bracket and the second bracket as the rotation point. The flipping mechanism includes a linear motion component and a connecting rod. The linear motion component is fixed on the frame bottom plate. One end of the connecting rod is rotatably connected to the counterweight, and the other end is rotatably connected to the linear motion component. The linear motion component includes a hydraulic rod, a linear guide rail and a slide rail trolley arranged collinearly. The slide rail trolley is slidably connected to the linear guide rail. The hydraulic rod points in the direction of the counterweight. One end of the hydraulic rod is fixed on the frame bottom plate, and the other end is connected to the slide rail trolley for pushing the slide rail trolley to reciprocate on the linear guide rail. The first connection component includes a support arm and an inclined arm arranged from bottom to top. The support arm is vertically arranged and fixed on the wheel cover. The inclined arm is a telescopic arm rod, arranged obliquely towards the inside of the battery placement space, and its free end is connected to the battery cover.

2. The electric loader according to claim 1, wherein: The connecting rod is an adjustable connecting rod, and its other end is rotatably connected to the slide rail trolley.

3. An electric wheel loader according to claim 1, characterized in that: When the counterweight is in the closed state, the connecting rod is parallel to the linear guide rail.

4. An electric wheel loader according to claim 1, wherein: The inner side of the battery cover is rotatably connected to the frame assembly.

5. An electric loader according to claim 1, characterized in that: A battery mounting seat for fixing the battery is also arranged between the frame bottom plate and the battery, and the battery mounting seat is fixed on the frame bottom plate.

6. An electric loader according to claim 1, characterized in that: The counterweight is connected to the wheel cover through a bolt connection component, and the installation position of the bolt connection component corresponds to the opening area of the battery cover.

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